Microsoft warns that outdated install images leave systems exposed and recommends updating Defender every three months.

Microsoft Defender is currently detecting and quarantining Defendnot as a 'Win32/Sabsik.FL.!ml; detection. Update 5/20/25: Updated story to explain that you need admin privileges to use the tool.

Microsoft's Smart App Control complements Windows Defender, blocking malicious applications before they're even executed but ...

Whether it's the built-in antivirus software or a third-party program, you want one because they will continuously scan your ...

A new tool called Defendnot tricks Windows into thinking that a real antivirus program is installed, which causes Defender to ...

Do you know that third-party apps can easily disable the Microsoft Defender in Windows and leave your system vulnerable? Here's how you can protect yourself.

When Microsoft Defender is mentioned, most users think of the antivirus software included in Windows (currently called ...

The reality is, every computer should have an antivirus program – even Mac owners should consider adding third-party ...

A new tool named Defendnot can trick Windows into disabling Microsoft Defender by faking antivirus registration.

In a proof-of-concept, a security researcher demonstrated how the Windows Security Center API can be used to block the scans ...

Microsoft Defender Antivirus does a decent job of securing Windows 10 and 11 PCs without other antivirus protection, though ...

New Microsoft Defender update boosts security for old Windows ISOs The latest update includes improved Defender software ...